Closed dongjoon-hyun closed 9 months ago
Thanks @dongjoon-hyun .
The default compression levels of aircompressor used by ORC and zstd-jni used by parquet are both level 3. I verified in the online environment that zstd-jni level 3 is not worse than aircompressor level 3.
Ya, thank you for checking.
What changes were proposed in this pull request?
This PR aims to set
orc.compression.zstd.level
to 3 by default.Why are the changes needed?
To prevent a regression from ORC 1.9.x
ORC 1.9
ORC 2.0
How was this patch tested?
Pass the CIs.
Was this patch authored or co-authored using generative AI tooling?
No.